title: Integrated solid/nanoporous copper/oxide hybrid bulk electrodes for high-performance lithium-ion batteries.
abstract: Nanoarchitectured electroactive materials can boost rates of Li insertion/extraction, showing genuine potential to increase power output of Li-ion batteries. However, electrodes assembled with low-dimensional nanostructured transition metal oxides by conventional approach suffer from dramatic reductions in energy capacities owing to sluggish ion and electron transport kinetics. Here we report that flexible bulk electrodes, made of three-dimensional bicontinuous nanoporous Cu/MnO2 hybrid and seamlessly integrated with Cu solid current collector, substantially optimizes Li storage behavior of the constituent MnO2. As a result of the unique integration of solid/nanoporous hybrid architecture that simultaneously enhances the electron transport of MnO2, facilitates fast ion diffusion and accommodates large volume changes on Li insertion/extraction of MnO2, the supported MnO2 exhibits a stable capacity of as high as ~1100 mA h g(-1) for 1000 cycles, and ultrahigh charge/discharge rates. It makes the environmentally friendly and low-cost electrode as a promising anode for high-performance Li-ion battery applications.
authors.affiliation: Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Hou
authors.forename: Xing-You
authors.initials: XY
authors.lastname: Lang
authors.forename: Gao-Feng
authors.initials: GF
authors.lastname: Han
authors.forename: Ying-Qi
authors.initials: YQ
authors.lastname: Li
authors.forename: Lei
authors.initials: L
authors.lastname: Zhao
authors.forename: Zi
authors.initials: Z
authors.lastname: Wen
authors.forename: Yong-Fu
authors.initials: YF
authors.lastname: Zhu
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
authors.forename: Jian-Chen
authors.initials: JC
authors.lastname: Li
authors.forename: Jian-She
authors.initials: JS
authors.lastname: Lian
authors.forename: Qing
authors.initials: Q
authors.lastname: Jiang